Nice work Neil! Not to get too off subject but what's your take on the 01's vs the 08's? My car is sitting in the garage waiting to go back to AMP this weekend and the 01's are insanely noisy when cold. Not kidding, when I come to a stop light it scares everyone and they look around for a freight train to plow through the intersection! I can't bare to drive it on the street with them but there's no point in changing them back to stock for just a week. I need to find a good compromise.

Nice work Neil! Not to get too off subject but what's your take on the 01's vs the 08's? My car is sitting in the garage waiting to go back to AMP this weekend and the 01's are insanely noisy when cold. Not kidding, when I come to a stop light it scares everyone and they look around for a freight train to plow through the intersection! I can't bare to drive it on the street with them but there's no point in changing them back to stock for just a week. I need to find a good compromise.

You know, with a weeks practice modulating the brakes you should be able to play a tune!

You know, with a weeks practice modulating the brakes you should be able to play a tune!

Oh, no practice needed. I should record it some time. I come to a stop light and brake normal. Squeeeeeeeeeel!!!! I lift a little thinking it will go away and the tone just changes and children for miles start crying, dogs start howling, and aware drivers start to look for a place to ditch their car. I brake a little harder and glass starts shattering. Once on track they are quiet and amazing after 1 hot lap but the rest of the time it's just unreal. The looks I get are hilarious.

This looks pretty cool but I don't think it would work as well in the 1M. I say this because the F30 (E90 too and I believe non-M E87) has built in air ducts that bring air from the bumper to the trailing edge of the undertray. Though not connected to the backing plates these ducts do direct air toward the brakes. The 1M has no such provision.

This does bring up the possibility of using the F30 backing plates and brake ducts through the undertray as Neil showed and leaving a gap as the factory does. Not as effective for track usage but very streetable.